Question

в) 3 1/3 : (3/7x - 13/15) = 1 9/16

Answer 1

3 1/3 : (3/7х - 13/15) = 1 9/16
10/3 : (3/7х - 13/15) = 25/16
3/7х - 13/15 = 10/3 : 25/16
3/7х - 13/15 = 10/3 * 16/25
3/7х - 13/15 = 32/15
3/7х = 32/15 + 13/15
3/7х = 45/15
3/7х = 3
х = 3 : 3/7
х = 3 * 7/3
х = 7